Landon Donovan, right, Mix Diskerud, center, and Chris Wondolowski warm up during a U.S. men's soccer team training session Wednesday, May 14, 2014, in Stanford, Calif. The team began a two-week training camp leading up to a May 27 exhibition with Azerbaijan at San Francisco's Candlestick Park. (AP Photo/Tony Avelar)

U.S. soccer roster evaluation

Here's how the U.S. men's national soccer roster looks as the team trains at Stanford for next month's World Cup in Brazil. The workouts are not open to the media or the public, so this analysis on which players will make coach Jurgen Klinsmann's final 23-man roster is based on evaluations by several longtime U.S. soccer observers:

Locks (or safe bets)

Player

Age

Club

League

Goalkeepers

Tim Howard

35

Everton

English Premier League

Brad Guzan

29

Aston Villa

English Premier League

Nick Rimando

34

Real Salt Lake

Major League Soccer

Defenders

DaMarcus Beasley

31

Puebla

Liga MX (Mexico)

Matt Besler

27

Sporting Kansas City

Major League Soccer

Geoff Cameron

28

Stoke City

English Premier League

Omar Gonzalez

25

LA Galaxy

Major League Soccer

Clarence Goodson

32

Earthquakes

Major League Soccer

Midfielders

Jermaine Jones

32

Besiktas

Super Lig (Turkey)

Michael Bradley

26

Toronto FC

Major League Soccer

Forwards

Clint Dempsey

31

Seattle Sounders FC

Major League Soccer

Jozy Altidore

24

Sunderland

English Premier League

Landon Donovan

32

LA Galaxy

Major League Soccer

On the bubble

Player

Age

Team

League

Defenders

John Brooks

21

Hertha Berlin

Bundesliga (Germany)

DeAndre Yedlin

20

Seattle Sounders FC

Major League Soccer

Tim Chandler

24

Nuremberg

Bundesliga (Germany)

Brad Evans

29

Seattle Sounders FC

Major League Soccer

Fabian Johnson

26

B. Mönchengladbach

Bundesliga (Germany)

Michael Parkhurst

30

Columbus Crew

Major League Soccer

Midfielders

Maurice Edu

28

Philadelphia Union

Major League Soccer

Julian Green

19

Bayern Munich

Bundesliga (Germany)

Mix Diskerud

23

Rosenborg

Tippeligaen (Norway)

Alejandro Bedoya

27

Nantes

Ligue 1 (France)

Brad Davis

32

Houston Dynamo

Major League Soccer

Kyle Beckerman

32

Real Salt Lake

Major League Soccer

Graham Zusi

27

Sporting Kansas City

Major League Soccer

Joe Corona

23

Club Tijuana

Liga MX (Mexico)

Forwards

Chris Wondolowski

31

Earthquakes

Major League Soccer

Terrence Boyd

23

Rapid Vienna

Austrian Bundesliga

Aron Johannsson

23

AZ Alkmaar

Eredivisie (Netherlands)

Note: Of this group, Johnson, Beckerman and Zusi are considered the most likely candidates to make the roster.